Home / 48,703.10-72,999.34-20,605.62

Finding the Fourth Proportional to 48,703.10, 72,999.34 and 20,605.62

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Solution

The fourth proportional to 48,703.10, 72,999.34 and 20,605.62 is: 30,885.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,703.10 : 72,999.34 = 20,605.62 : x
  2. Step 2: Convert to fraction form
    48,703.10/72,999.34 = 20,605.62/x
  3. Step 3: Cross multiply
    48,703.10x = 72,999.34 × 20,605.62
  4. Step 4: Simplify right side
    48,703.10x = 1,504,196,660.29
  5. Step 5: Solve for x
    x = 1,504,196,660.29/48,703.10
  6. Step 6: Final answer
    x = 30,885.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.